Razer RC21-01810100-R3M1 Kunai 120MM aRGB PWM PC Fan 3-Pack

The Razer Kunai 120mm aRGB PC Fan 3-Pack is designed for builders who want both strong thermal performance and synchronized RGB aesthetics. Each fan uses hydraulic bearings and an optimized blade design to push up to 65.5 CFM of airflow at its maximum 2200 RPM, while scaling down to a quiet 500 RPM for low-noise operation during light workloads. The PWM control allows the motherboard or a dedicated fan controller to adjust speeds dynamically based on system temperatures, keeping the build cool under load and quiet at idle.

On the visual side, each fan is loaded with addressable RGB LEDs powered by Razer Chroma RGB, offering access to 16.8 million colors and a library of lighting patterns and effects through Razer Synapse software. The daisy-chain design is a practical standout feature—both the PWM and aRGB cables connect fan-to-fan, supporting chains of up to 8 units and dramatically reducing the number of cables running back to the motherboard or controller. This makes the Kunai fans particularly well suited for builds with extensive fan configurations, where clean cable routing can be a challenge. The 3-pack bundles enough fans for a common front-panel intake or top-panel exhaust setup in a single purchase.